Add test for no cache-cleanup with config-cache hit

sources/src/build-results.ts

@@ -24,6 +24,10 @@ export class BuildResults {
         return this.results.some(result => result.buildFailed)
     }
 
+    anyConfigCacheHit(): boolean {
+        return this.results.some(result => result.configCacheHit)
+    }
+
     uniqueGradleHomes(): string[] {
         const allHomes = this.results.map(buildResult => buildResult.gradleHomeDir)
         return Array.from(new Set(allHomes))

sources/src/caching/cache-reporting.ts

@@ -19,6 +19,9 @@ export const DEFAULT_CLEANUP_ENABLED_REASON = `[Cache cleanup](https://github.co
 export const CLEANUP_DISABLED_DUE_TO_FAILURE =
     '[Cache cleanup was disabled due to build failure](https://github.com/gradle/actions/blob/v3/docs/setup-gradle.md#enabling-cache-cleanup). Use `cache-cleanup: always` to override this behavior.'
 
+export const CLEANUP_DISABLED_DUE_TO_CONFIG_CACHE_HIT =
+    '[Cache cleanup was disabled due to configuration-cache reuse](https://github.com/gradle/actions/blob/v3/docs/setup-gradle.md#enabling-cache-cleanup). This is expected.'
+
 /**
  * Collects information on what entries were saved and restored during the action.
  * This information is used to generate a summary of the cache usage.

sources/src/caching/caches.ts

@@ -1,5 +1,10 @@
 import * as core from '@actions/core'
-import {CacheListener, EXISTING_GRADLE_HOME, CLEANUP_DISABLED_DUE_TO_FAILURE} from './cache-reporting'
+import {
+    CacheListener,
+    EXISTING_GRADLE_HOME,
+    CLEANUP_DISABLED_DUE_TO_FAILURE,
+    CLEANUP_DISABLED_DUE_TO_CONFIG_CACHE_HIT
+} from './cache-reporting'
 import {GradleUserHomeCache} from './gradle-user-home-cache'
 import {CacheCleaner} from './cache-cleaner'
 import {DaemonController} from '../daemon-controller'
@@ -90,7 +95,10 @@ export async function save(
     await daemonController.stopAllDaemons()
 
     if (cacheConfig.isCacheCleanupEnabled()) {
-        if (cacheConfig.shouldPerformCacheCleanup(buildResults.anyFailed())) {
+        if (buildResults.anyConfigCacheHit()) {
+            core.info('Not performing cache-cleanup due to config-cache reuse')
+            cacheListener.setCacheCleanupDisabled(CLEANUP_DISABLED_DUE_TO_CONFIG_CACHE_HIT)
+        } else if (cacheConfig.shouldPerformCacheCleanup(buildResults.anyFailed())) {
             cacheListener.setCacheCleanupEnabled()
             await performCacheCleanup(gradleUserHome)
         } else {